Slashdot Mirror


Poland Builds a Solar-Powered Bike Path That Glows Blue At Night (techcrunch.com)

Poland recently unveiled a new solar-powered bike path in the town of Pruszkow that is built with "light-emitting material" that gets its power from the sun. While the bike path has the potential to glow multiple different colors, the path in Prusczkow glows a cool blue for up to 10 hours in the dark. TechCrunch reports: The company that made it, TPA sp. z o.o, is an engineering firm focused on future tech. They expect this sort of road to be useful in larger projects -- highways, say -- but for now they're limiting it to bike paths until they can test the material in the wild. They said that this type of path may be installed in Warsaw soon and that it can glow multiple colors. The lane uses luminophores -- chemicals that "ingest" light -- to keep the bike path nicely lit at night. They chose blue to "match the Mazurian landscape" where lakes abound. You can read a bit more at Gazeta Wyborcza if your Polish isn't too rusty or you can just bask in the cold beauty of a glowing bike lane in deepest Poland.

104 comments

  1. One step better than by Anonymous Coward · · Score: 0

    North Korea at night?

  2. Glow in the dark by GuB-42 · · Score: 4, Insightful

    Well, that's a very convoluted way of saying they covered the path with glow-in-the-dark paint.

    1. Re:Glow in the dark by Anonymous Coward · · Score: 2, Funny

      give 'em a break. they're polish.

    2. Re:Glow in the dark by msauve · · Score: 1

      +1. It's much simpler than it sounds.

      --
      "National Security is the chief cause of national insecurity." - Celine's First Law
    3. Re: Glow in the dark by Anonymous Coward · · Score: 0

      I feel for them they've had to close most of their submarine screen door factories.

    4. Re:Glow in the dark by 93+Escort+Wagon · · Score: 1

      Well, that's a very convoluted way of saying they covered the path with glow-in-the-dark paint.

      It's still pretty cool.

      --
      #DeleteChrome
    5. Re: Glow in the dark by Anonymous Coward · · Score: 0

      Boring! Now if only they'd make steel that glows blue when Poles are near...
      That would make a great letter opener.

    6. Re:Glow in the dark by TheRaven64 · · Score: 4, Interesting

      It depends. A pale blue might make things more dangerous - it takes a lot less blue light to destroy your night vision than it takes to see usefully.

      --
      I am TheRaven on Soylent News
    7. Re:Glow in the dark by MouseTheLuckyDog · · Score: 4, Insightful

      Dude glow in the dark paint only lasts like five minutes. This lasts for ten hours.

    8. Re:Glow in the dark by Anonymous Coward · · Score: 0

      Well, that's a very convoluted way of saying they covered the path with glow-in-the-dark paint.

      Well, when I was a kid, I painted my bike with "Lightning bug glow juice" - now who's smarter?! Wait...why do we make Polish jokes again?

    9. Re: Glow in the dark by Anonymous Coward · · Score: 0

      Is this sentiment still alive in the US? I mean any more than US nationalism itself?

      The original article doen't sound nearly as dramatic as the /. submission. Essentially they are testing new luminescent road surface material (not paint but still passive). The council wants to know the cost, durability and environmental properties of this material before wider deployment.

    10. Re:Glow in the dark by Anonymous Coward · · Score: 0

      And yet their country is more beautiful, has less crime and more freedom than the USA. Maybe being Polish isn't such a bad thing after all.

    11. Re:Glow in the dark by tsa · · Score: 1

      Not so cool for the animals and plants living around it though.

      --

      -- Cheers!

    12. Re:Glow in the dark by thoughtlover · · Score: 1

      Well, there's this solar-powered, LED path in The Netherlands...

      http://www.boredpanda.com/van-...

      --
      No sig for you! Come back one year!
    13. Re:Glow in the dark by Anonymous Coward · · Score: 0

      Andrzej, log in please.

    14. Re:Glow in the dark by MercTech · · Score: 1

      The longer lasting photoluminescent compounds are more expensive. Most photoluminescent pigments degrade by oxidation and lose the photoluminescent properties over time. There is also a steep curve to photon output. The cited article doesn't blatantly say so but it appears the innovation the cited company has made is to put a longer lasting photoluminescent pigment into the type of glass beads used for high reflectivity signs. Having a photoluminescent pigment vitrified into microscopic glass beads would prevent the oxidation degradation and increase the perceived luminosity with the reflection from the glass beads. Now, if you added a low level alpha emitter to the mix you would have a paint that would glow continuously for thousands of years.

      --
      NRRPT/RCT
  3. More blue light? by ZipK · · Score: 1

    Aren't we worried about LED streetlights that emit too much blue light? Now we're making the bike pathways glow blue?

    1. Re:More blue light? by Fly+Swatter · · Score: 5, Funny

      Are you worried about trying to not fall asleep while biking ?

      Maybe this is the solution.

    2. Re:More blue light? by drnb · · Score: 1

      Aren't we worried about LED streetlights that emit too much blue light? Now we're making the bike pathways glow blue?

      They want the cyclists to be awake for safety reasons.

    3. Re: More blue light? by Anonymous Coward · · Score: 0

      How about it was glowing green instead? Best eye sensitivity and whatnot...

    4. Re: More blue light? by Anonymous Coward · · Score: 0

      The blue lights cause stress to the eyes. Yeah, it messes with sleep, but i could still be painful to bike on. Where i live, theres this one bench with a bright deep blue light illuminating the area. Its pretty for a picture, but actually painful to look at.

    5. Re:More blue light? by TooManyNames · · Score: 4, Insightful

      This is basically a durable glow-in-the-dark paint, not a bunch of LEDs. If you look at that first photo from the article (where the path appears to glow somewhat brightly), you'll noticed that it was taken with a bit of a long exposure (also why the sunset seems so bright). While I'm sure the paths will be quite visible at night, I hardly think that they'll approach anywhere near the magnitude of LEDs. In other words, I highly doubt that this will have much of an impact on the populace's nighttime response, though it'll probably confuse some insects or something.

      --
      "Is not a sentence" is not a sentence. Well damn.
    6. Re:More blue light? by TheRaven64 · · Score: 1

      Bike lights are already mostly LEDs. It's quite unfortunate that white LEDs became popular for front lights, because they destroy night vision much faster than yellow (red+green) LEDs. The most dangerous ones flash (to conserve power) and are very bright. The person riding them gets enough persistence of vision to see, but from the perspective of oncoming vehicles you're a dot (not large enough for the visual cortex to be able to accurately estimate distance) that keeps disappearing.

      --
      I am TheRaven on Soylent News
    7. Re:More blue light? by Anonymous Coward · · Score: 0

      Luckily the flashing lights are illegal here. Unluckily, they are sold everywhere and everyone uses them :(

    8. Re: More blue light? by Anonymous Coward · · Score: 0

      According to TFA they chose this colour for aesthetic reasons, so it may be possible to change it. Also, we are not talking about much light.

    9. Re:More blue light? by R3d+M3rcury · · Score: 1

      What if I have a self driving bike and I want to catch a nap?

    10. Re:More blue light? by drnb · · Score: 1

      What if I have a self driving bike and I want to catch a nap?

      You can ride on an unlit bike path, the self driving bike can use IR.

  4. Prior Art by Anonymous Coward · · Score: 0

    Chernobyl had this first.

    But they chose Tritium Yellow.

  5. Already claims its first victim (READ TFA) by Provocateur · · Score: 5, Funny

    You have to read the linked article; the same kewl blue was used to make the first chalk outline where the body was found by homicide cops.

    If there will ever be that rare instance when you actually read a slashdot article, NOW is the time.

    --
    WARNING: Smartphones have side effects--most of them undocumented.
    1. Re:Already claims its first victim (READ TFA) by Anonymous Coward · · Score: 0

      I'm not normally so dim but what do you mean? I read the Techcrunch article and the Google translated Gazeta Wyborcza and still no wiser?
      Same for the submarine shutters.

    2. Re:Already claims its first victim (READ TFA) by wonkey_monkey · · Score: 1

      And to pile insult upon injury, they nicked his bike.

      --
      systemd is Roko's Basilisk.
    3. Re:Already claims its first victim (READ TFA) by Provocateur · · Score: 1

      Normal police procedure is to draw a chalk outline where the homicide victim was found, and the chalk outline more or less depicts the position the victim was found (sprawled with arms outstretched, or dead when reaching for something, and they proceed to mark the position of bullet casings or whatever evidence is found near the body.

      The evidence found near the body was his bicycle. You have to watch enough police shows or crime thrillers or Police Squad! movie marathons to know these things, to understand

      --
      WARNING: Smartphones have side effects--most of them undocumented.
    4. Re:Already claims its first victim (READ TFA) by Anonymous Coward · · Score: 0

      Normal police procedure is to draw a chalk outline where the homicide victim was found,

      Normal police procedure is not to contaminate the crime scene with sidewalk chalk....

    5. Re:Already claims its first victim (READ TFA) by camperdave · · Score: 2

      Normal police procedure is to draw a chalk outline where the homicide victim was found...

      Hollywood movie police procedure is to draw a chalk outline where the homicide victim was found... FTFY

      --
      When our name is on the back of your car, we're behind you all the way!
  6. Fluorescent, see Star-Path by Anonymous Coward · · Score: 0

    Yeh, seems to be a fluorescent stuff called 'Star Path' in the US and other brands elsewhere:

    http://www.pro-teqsurfacing.com/starpath-pro/

    But still pretty, something I've never seen before.

    1. Re:Fluorescent, see Star-Path by Anonymous Coward · · Score: 0

      Those guys need someone who can design a decent web page.

  7. See, see... by Anonymous Coward · · Score: 0

    See! This is what fear-mongering does! It makes people imagine bad things everywhere all the time!

    1. Re:See, see... by bestweasel · · Score: 1

      Clowns, probably. They're attracted to blue light.

  8. Did you hear about the Polish submarine? by Anonymous Coward · · Score: 0

    Of course you didn't - they built it with screen doors!

  9. Re: wow by Anonymous Coward · · Score: 0

    How many Polacks does it take to change a lightbulb?
    None, they just cover everything with glow in the dark paint.

  10. Millennials will save the planet! by Anonymous Coward · · Score: 0

    It's amazing how those new technologies revolutionize the world and make it a better place. The innovations are the key to societal transformation. I hope all the Sanders supporters will learn this lesson and start thinking globally, acting locally.

  11. Poland Builds a Solar-Powered Bike Path That Glows by rickyslashdot · · Score: 1, Redundant

    Jeeez, can't ANYBODY give them credit for applying an energy-efficient lighting solution for the bikers? They deserve as much attention (if not more, since they aren't gas-guzzlers) as any segment of the population. Additionally, if the trial proves to be effective, it will be applied to roadways for increased safety for the motorists.

    --
    redneck geek
  12. Re:Poland Builds a Solar-Powered Bike Path That Gl by Anonymous Coward · · Score: 2, Insightful

    It's a DUMB idea. As someone who rides in the night, your eyes get used to the dark, there's enough light from the moon, and my LED headlights are more than enough. This chemical shit will just aggravate nocturnal animals and add more toxins to the environment.

  13. Let's put this in the context of politics by Anonymous Coward · · Score: 0, Funny

    All discussions must be put in the context of gender and racial inequality in America. I would like to submit that if President Obama would have created this bike path by spending 10 billion USD all the liberals would be applauding it. However since it was invented by Poles (aka evil white crackers) we must hate this and and want the UN to outlaw polish bike paths because they could hasten crackergenic global climate change. Did you notice that there are no African Americans riding on this polish bike path. The reason is obviously that poles (aka whites) hate blacks.

    Let's discuss this in terms of Partisan USAian politics.

    1. Re:Let's put this in the context of politics by Opportunist · · Score: 1

      But then again, Poles are Europe's unterprivileged class, they're basically Europe's Mexicans.

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    2. Re: Let's put this in the context of politics by Anonymous Coward · · Score: 0

      Except that Poland's part of Europe in the same way that Mexico isn't part of the US.

    3. Re: Let's put this in the context of politics by Opportunist · · Score: 1

      It's part of the EU, I guess that's what you wanted to say. Unless you want to say that Mexico ain't part of America...

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    4. Re: Let's put this in the context of politics by Anonymous Coward · · Score: 0

      Used to be, but thanks to working hard they've catched up quite a lot economically. One of Europe's success stories, if you ask me.

  14. In other news... by Archfeld · · Score: 0

    If you hang out too long on the glow in the dark bike path you can get the abortion that is denied you under any form of Polish law.

    --
    errr....umm...*whooosh* *whoosh* Is this thing on ?
    1. Re:In other news... by bestweasel · · Score: 1

      Well they seem to have backed down in the face of widespread opposition so that's a plus for democracy and shows that the state's will and Rome's rule can be overcome.

  15. Re:Poland Builds a Solar-Powered Bike Path That Gl by TooManyNames · · Score: 3, Insightful

    It's not a dumb idea, nor is it particularly bright (in the literal sense ;) ).

    The path isn't comprised of a bunch of LEDs, it's basically coated with a durable glow-in-the-dark paint. That's a low-intensity light that won't be blinding by any stretch, and is actually a pretty good idea. As someone who actually rides at night (I commute ~2,500 miles/year on my bike), I'd welcome something like this as it'd be just bright enough to expose things, like branches or people walking in dark clothing, in the path before you're right up on them. Moreover, I'd welcome this over using street lamps to light the paths I take that are currently unlit, since, as I mentioned, this would entail more of a dull glow than a harsh light.

    Also, your solution is to use the moon? I take it that there's always a full moon and clear skies where you are?

    --
    "Is not a sentence" is not a sentence. Well damn.
  16. Moral hazzard by quenda · · Score: 2

    I'm not in favour of anything that encourages people to ride at night without lights, so be hard to see.
    If a bike has lights, even dim ones, standard cateye-reflective paint is better, cheaper, and works after overcast winter days.

    1. Re:Moral hazzard by CastrTroy · · Score: 2

      Very much this. You can get a very bright and functional light for very cheap these days. Everybody who is riding in the night or even during other times of reduced visibility should have a light. Personally, I leave mine on all the time, like daytime running lights on a car. Increased visibility is great for improving safety.

      --

      Anthropic principle: We see the universe the way it is because if it were different we would not be here to see it.
    2. Re:Moral hazzard by Immerman · · Score: 1

      The problem with headlights though is that even with cubic-reflector surfaces they still obey the inverse-quad law - something twice as far away gets hit by 1/4 the light from your headlights, and only 1/4 as much of that makes it back to you. Hence the relatively sharp line of darkness around a campfire or other solitary light source on a dark night.

      In essence, your own reflected light blinds you to more distant objects. Worse, your headlight blinds oncoming people to their environment long before either of you can see anything but each others lights.

      In contrast, ambient light fades only according to the inverse square law, allowing you to see things at much greater distances. And a gentle glow such as this doesn't even substantially illuminate the environment, it makes only the path visible, with any obstacles upon it being nearly black voids against the glow - extremely visible even at long distances or with dark-colored obstacles (unlike trying to see them against a black path, even with streetlights.)

      --
      --- Most topics have many sides worth arguing, allow me to take one opposite you.
    3. Re:Moral hazzard by akozakie · · Score: 1

      Completely wrong. Reason no. 1: this will not help you ride without a headlight much, it's much too dim. Reason no.2: headlights are directional, this is much better on curves and works better at a distance.

      BTW: riding at night without a headlight is just stupid, we fully agree on that.

    4. Re:Moral hazzard by quenda · · Score: 1

      even with cubic-reflector surfaces they still obey the inverse-quad law -

      Ahh ... no! The whole point of corner reflectors (aka cubic, retro) is to avoid that problem. What you describe is an ordinary white surface.
      Reconsider?

      Retro-reflective paint makes things visible even with a tiny bike-light, far beyond your stopping distance.
      On second thoughts, there is a big problem painting the whole path instead of just the edges - it will be too bright close up.
      But if pedestrians have a separate parallel path, as in the above Polish case, there is no need to light the whole path. Other bikes have reflectors too.

    5. Re:Moral hazzard by Anonymous Coward · · Score: 0

      Retroreflective paint kinda requires that the glass beads are in the top layer. That's prone to wear off, so it has to be reapplied every few years to stay effective, and councils are pretty lazy about doing that.

      What they're doing here is mixing strontium aluminate (a long-lasting glow-in-the-dark pigment) into a translucent plastic or resin and making gravel out of that, which then becomes the top layer of the path. That's likely to withstand a lot more wear & tear than white paint with glass beads. It could last decades.

      The other bonus is that it looks really cool, and if they've had a problem with cyclists riding on the road at night without lights, then having a really attractive bike path could solve that problem quite elegantly.

  17. this paint is very, very dim by YesIAmAScript · · Score: 2

    Anyone who has used it knows. You can tell this is a very long exposure picture by the city glow in the background.

    It's bunk.

    Nissan painted a LEAF (car) in it recently and also used the same trick of long exposures to make it look like it wasn't just a dim, laughable glow.

    --
    http://lkml.org/lkml/2005/8/20/95
    1. Re:this paint is very, very dim by bestweasel · · Score: 2

      For a brightly-lit city centre it will be useless but if you've ever been outside at night in an area like that photo for 20 minutes or so, you'll know that our eyes adapt to the dark and a faint glow when there's no other light can be all you need. You can't tell from photos how bright it is. Cool photo anyway.

    2. Re:this paint is very, very dim by Anonymous Coward · · Score: 0

      >but if you've ever been outside at night in an area like that photo for 20
      >minutes or so, you'll know that our eyes adapt to the dark

      Unless there is other traffic with bright lights (e.g. oncoming cars).

    3. Re:this paint is very, very dim by drinkypoo · · Score: 1

      Unless there is other traffic with bright lights (e.g. oncoming cars).

      Or merely cyclists using their lights so that they don't run over a rock.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    4. Re:this paint is very, very dim by Blaskowicz · · Score: 1

      That's a good thing actually. Light pollution is pollution. If it glows strong, it will make the surrounded plants retarded and make thousands of nocturnal animals insane.
      Even then, I wonder if they made the right choice of wavelength or if another one would have been better.

    5. Re:this paint is very, very dim by Anonymous Coward · · Score: 0

      Yeah, every city with street lights has a problem with retarded plants and insane nocturnal animals, no matter how carefully they choose their wavelengths.

      What's worse are cities with moonlight. Moonlight has all sorts of wavelengths! It ain't natural!

    6. Re:this paint is very, very dim by Anonymous Coward · · Score: 0

      If this came about the way humans typically do things, the choice of wavelength was based on the principal of what was readily available. Next factor was probably cost. Then there is the possibility that the number of wavelengths is limited, constrained by the laws of physics (the laws of human want always loses to the laws of physics!).
      Finally, if we get down to choosing based on the least damage to the environment, you are often talking about a mature technology that actually gives you multiple options.
      BTW, and an amateur astronomer, I'm happily surprised that the concept of light pollution has in the past few years entered to some degree into public discourse.
      As a former bicyclist (for various reason, age, fear of being killed by idiots in vehicle (yes, a lot bike riders are jerks, too) ) who worked in a bike factory in my early 20's, this on the face of it seems like a benefit to bike riders.
      One thing I learned as an amateur astronomer is that you can with a little experience learn to do things with very low light, like setting up and taking down an 8" SCT telescope on a German equitorial mount. I can do it by starlight. Most people don't have that experience, and think/assume/believe that unless you flood the night with enough light to read a book or repair a watch, you need more light. For walking, riding a bike, driving a car, seeing potential muggers or mad dogs, you don't need that much light. The concept of adequate outdoor night lighting relevant to the need just is not on most peoples conceptial library. Hence, lots of human habitated regions are way over-lit at night for the need.

    7. Re:this paint is very, very dim by Blaskowicz · · Score: 1

      When I'm out and the cities have replaced the old yellow lamps with strong white spectrum lights, I'm the nocturnal animal and the lights piss me off. Or until I can afford prescription sun glasses.

      For moonlight, it's actually natural, i.e. if there were plants whose regulation systems were triggered by moonlight, mistaking it for daylight, they likely died off and were replaced by more adapted plants.

  18. Re:Poland Builds a Solar-Powered Bike Path That Gl by bestweasel · · Score: 2

    Despite the a/c's crude phrasing, we should be careful about introducing large amounts of anything new into the environment. I was just reading about "Project Plowshare", an idea in the '60s to use nuclear bombs to remodel the earth for engineering projects. Does anyone still think that's a good idea (not you Donald)?

    Britain's rivers and lakes polluted by microplastics in paint used for road markings

  19. Re:Poland Builds a Solar-Powered Bike Path That Gl by hawguy · · Score: 1

    Despite the a/c's crude phrasing, we should be careful about introducing large amounts of anything new into the environment. I was just reading about "Project Plowshare", an idea in the '60s to use nuclear bombs to remodel the earth for engineering projects. Does anyone still think that's a good idea (not you Donald)?

    Britain's rivers and lakes polluted by microplastics in paint used for road markings

    I'm pretty sure this blue glowing paint is not powered by nuclear bombs - it would be somewhat brighter if that were the case, and would have a noticeable affect on maintenance costs.

  20. Re:Poland Builds a Solar-Powered Bike Path That Gl by bestweasel · · Score: 2

    This is what you earthlings call a joke, yes? but still the article has a cautionary note that the environmental effects are unknown.

  21. Re:Poland Builds a Solar-Powered Bike Path That Gl by Anonymous Coward · · Score: 0

    The moon doesn't always shine, and even when it does, it's not bright enough to make you see AND BE SEEN. Put lights on your bikes. The current generation of LED headlights from Busch & Müller (en.bumm.de) does an amazing job lighting the path and the sides without dazzling oncoming traffic. You almost forget it's night with one of those lights. I'm not kidding.

  22. Re:Interesting idea, but not safe on its own by flyingfsck · · Score: 1

    This is Poland, not America. People are generally safe in Poland and the police knows what a cell phone is and won't shoot you when you pull one out of your pocket.

    --
    Excuse me, but please get off my Pennisetum Clandestinum, eh!
  23. Re:Poland Builds a Solar-Powered Bike Path That Gl by flyingfsck · · Score: 1

    Well, in Europe, people and animals are actually used to street lights. This is not the DPRK.

    --
    Excuse me, but please get off my Pennisetum Clandestinum, eh!
  24. Re:Poland Builds a Solar-Powered Bike Path That Gl by flyingfsck · · Score: 0, Troll

    This is Europe, not California. Europeans know not to lick the bicycle paths.

    --
    Excuse me, but please get off my Pennisetum Clandestinum, eh!
  25. Re:Poland Builds a Solar-Powered Bike Path That Gl by Anonymous Coward · · Score: 0

    Phosphorescent paint isn't dangerous per se but it could have an impact in fauna at night... if the street at the side is not enough :v

  26. Re:Interesting idea, but not safe on its own by Anonymous Coward · · Score: 0

    What stalkers? Poland is one of the safest country on Earth, unlike the US.

  27. Re:Poland Builds a Solar-Powered Bike Path That Gl by Anonymous Coward · · Score: 0

    Where do you morons come up with this shit? How can you compare this to Project Plowshare?

  28. Re: Poland Builds a Solar-Powered Bike Path That G by bestweasel · · Score: 0

    I'll explain it simply, just for you. What was thought to be a good idea fifty years ago would now be looked upon as an unacceptable environmental disaster. Now shut the fuck up, Donald.

  29. Re:Poland Builds a Solar-Powered Bike Path That Gl by thegarbz · · Score: 1

    My solution is using a decent bike light. Why people still insist on riding without one, or when they have one using it only to warn oncoming cars with a little blinky light is beyond me.

    LEDs were good enough to light up a path in front of me with a little (at the time lead acid but now...) lithium battery for several days worth of a commute between charges. Setup the beam pattern so it's equivalent to a cars, and nuke the path in front of you with as much light as you want.

    You could take this to extremes too. My friend asked me to come diagnose his lights because he kept getting electrocuted. When I saw the HID light wired on his bike frame I just shook my head, but hey with those he could see in a black hole, no glowing paint needed.

  30. Seriously. by MouseTheLuckyDog · · Score: 1

    I suspect this effects the lighting environment less then alternate means such as street lights.

    As for bike lights ... I don't bike anymore due to health, but when I did I would not use a light powered by a generator. I wanted all my power to go into motion. Batteries would be a mess environmentally. Not to mention that I would probably forget to have a fresh paiora lot of the time.

    This would not be so great illuminating streets, but there you would have brighter lights for cars.

    I remember commuting home along the Chicago lake shore.. I would have welcomed a little ambient light that did not destroy the queit darkness of the night..

    There were also places where driving was nasty because the street lights didn't work quite right were this sort of lighting would be welcomed./

    1. Re:Seriously. by TooManyNames · · Score: 1

      Somewhat off-topic from the main article, but to your point about bike lights, I've used both lights powered by a generator, and battery-powered lights.

      Unless you're in a high-level bike race (where you wouldn't have lights to being with), you're not going to notice any additional drag from a generator -- at least, not with the method my generator uses. It's not like it comes into direct contact with the wheel or anything; it just uses the circulation of permanent magnets around the center hub of the front wheel, which doesn't produce drag noticeable beyond regular road noise. That said, it's not as bright as good battery-powered lights. Note that, when I say good, I don't mean a Wal-Mart light that just uses AAs; I'm talking about a rechargeable light that puts out a lot of light. This should also address your concern of battery replacement, since you really don't need to do that with such lights.

      --
      "Is not a sentence" is not a sentence. Well damn.
  31. Van Gogh Path by bart_smit · · Score: 2

    There is a path like this near Eindhoven, themed like Van Gogh's 'Starry Night'. http://www.holland.com/global/...

  32. Re:Poland Builds a Solar-Powered Bike Path That Gl by Opportunist · · Score: 1

    This is Poland we're talking about, so I wouldn't be so sure...

    --
    We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
  33. Re:Poland Builds a Solar-Powered Bike Path That Gl by drinkypoo · · Score: 1

    Jeeez, can't ANYBODY give them credit for applying an energy-efficient lighting solution for the bikers?

    No, because they haven't done that. It would be a lot cheaper to put normal paint with reflective particules in it down, and let people's bicycle lights illuminate it. You already need one to safely ride at night; for the parts of your journey that aren't on a cycle path, so that you don't hit an oncoming cyclist on the cycle path, so that you don't run over a rock or a tack on the cycle path... This solves zero problems and costs money better spent elsewhere.

    --
    "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
  34. clickbait by Anonymous Coward · · Score: 0

    The "Solar-Powered" part is just clickbait. Yea, strictly speaking it is solar powered, but "glow-in-the-dark paint" is more descriptive (and boring). It'll never provide enough light to be more that a cute gimmick.

  35. Like the pedestrian side by CanadianMacFan · · Score: 1

    I like what they did on the pedestrian side where they just marked the edges and put in the occasional pedestrian sign. It would have been good if they did the same to the cycle path. There's no need to have the whole path covered. Just outline the path so that people can see where it's going.

    1. Re:Like the pedestrian side by TeknoHog · · Score: 1

      There's no need to have the whole path covered. Just outline the path so that people can see where it's going.

      Not to mention that the paint makes it more slippery. I'm sure the cyclists will be delighted, especially during or after rain.

      --
      Escher was the first MC and Giger invented the HR department.
    2. Re:Like the pedestrian side by Anonymous Coward · · Score: 0

      It's not paint, it's glow-in-the-dark gravel cemented onto the pavement.

    3. Re:Like the pedestrian side by Anonymous Coward · · Score: 0

      I can think of two reasons to cover the whole path, and not just the edges:

      1: With the whole path glowing, you can see obstacles like sticks, rocks and cats. Yes, a headlight will illuminate those obstacles, too, but a uniformly glowing path will make them even clearer.

      2: With the whole path glowing, it looks way more interesting and makes the whole experience more appealing & enjoyable. Making people happy should be a no-brainer.

  36. Re:Poland Builds a Solar-Powered Bike Path That Gl by camperdave · · Score: 1

    This stuff would be better on foot paths and as trail markers rather than as bike path lighting. Put it on places like along the edge of stairs to mark trip hazards and the like.

    --
    When our name is on the back of your car, we're behind you all the way!
  37. Re:Poland Builds a Solar-Powered Bike Path That Gl by TooManyNames · · Score: 2

    This isn't a replacement for a bike light any more than street lamps are a replacement for car headlights; it's there to augment night vision, that's all.

    I've got a good headlight for my bike, and I use it at night all the time, but it still has its limitations. Have you never come across something, like a stray branch or random hunk of metal, when you're biking at night? These things are often dark, not particularly reflective, and laying on a dark surface, so they're easy to miss until you're basically running over them, even with a bright headlight to light the way ahead. Having a dull backlight that exposes these things due to occlusion of that light would, for me at least, be very helpful.

    I'd also note that this applies to people walking on bike paths at night as well. Speaking personally, I've actually run into someone on an unlit bike path (I was almost able to slam on the brakes in time, so it wasn't major) because I didn't see them -- dressed all in black, no less -- until I was right on top of them. Why didn't I see them? Because there was no ambient light, and the path was curving at that point, so my headlight, being fairly directional, wasn't able to shine directly on them until I was right on top of them. Incidentally, a glowing path would be useful for exposing turns on unfamiliar paths as well.

    So, yeah, I've got a good headlight, but I've experienced its limitations, and can see how Poland's solution would address those limitations without costing a bunch in infrastructure, without requiring external power generation, and without introducing overly-bright lights lining bike paths. Assuming that this isn't some environmental catastrophe (I'm assuming it's no better or worse than highway paint), I think this is a pretty good idea.

    --
    "Is not a sentence" is not a sentence. Well damn.
  38. When will urban planners learn? by Anonymous Coward · · Score: 0

    They say it can be in multiple colors, and they chose blue. You don't use blue at night because it screws with people's sleep rhythms.

    1. Re: When will urban planners learn? by Anonymous Coward · · Score: 0

      Err, maybe it's not a bug (although bugs will be attracted in staggering numbers) but a feature to keep the cyclists awake ?

  39. Portland Needs These by mallyn · · Score: 1
    Portland Oregon, the bicycle capital of the US needs these!

    Drivers need to have these glow so they can stay off of them!

    --
    Most Respectfully Yours Mark Allyn Bellingham, Washington
  40. Re:Poland Builds a Solar-Powered Bike Path That Gl by kitezh · · Score: 1

    It could be useful for the lane marker paint to make it easier to see at night, especially when on a winding road with lots of turns just out of reach of your headlights.

  41. Tokenism at its worst by prefec2 · · Score: 1

    Poland is hindering the EU in being more effective reducing CO2 emissions because they want to protect their coal. Instead of actively steering the transformation, they try to stop it. Such solar-something toys are only tokenism and has no real effect. Neither do they test new technology nor do they help to proliferate existing technology. It is even worse than that what the Germans do. It is like politicians have not understood that we have to be carbon free be 2040/2050 (depending on the reduction curve). You cannot negotiate a later date with nature, because nature doesn't give a damn.

    1. Re:Tokenism at its worst by Anonymous Coward · · Score: 0

      The amount of CO2 Poland produces is not significant when you have countries such as U.S and China churning out more than twice the amount. I think you expect too much of these small emerging countries, and by placing these restrictions, you will hinder them economically. Let them figure it out on their own, when their lives are at stake.
      Here's a link to the article, even though it is a little dated I'm fairly positive that things have not changed that much since 2011 (http://www.ucsusa.org/global_warming/science_and_impacts/science/each-countrys-share-of-co2.html).

      On the other hand, and this is my own opinion, resources are there to be used. You expect humanity to change its course of action just by placing few restrictions? Nothing is going to change unless a serious catastrophic event is going to occur. Lack of resources will stimulate progress and technological advancements, and only then we will move on to more Eco-friendly tech. (Renewable energy is not even that wide-spread at the moment: http://www.eia.gov/energyexplained/index.cfm?page=renewable_home)

      Lastly, I trust as much in E.U. as far as I could throw them. They are incapable of solving a simple issue, and concentrate too much in life-hindering laws. This organization has failed on more than one occasion and it needs to fall apart.

    2. Re:Tokenism at its worst by Anonymous Coward · · Score: 0

      Doesn't making a cool glowing bicycle path encourage the use of bicycles? Doesn't that reduce CO2 emissions?

      I wish I lived in a bike-friendly city. Then I wouldn't need a car at all.

      Oh, wait - I don't own a car. I have a bike instead. Huh.

  42. Re:Poland Builds a Solar-Powered Bike Path That Gl by thegarbz · · Score: 1

    I'd also note that this applies to people walking on bike paths at night as well.

    Oh yes this gives me the shits. I run on bike paths at night but I dress in bright colours and I also have an LED running band.

    But really it is still sad that we are talking about augmenting vision when the vast majority of cyclists don't put in basic efforts into their lights. (I live in the Netherlands, we have a lot of cyclists).

  43. Re:Poland Builds a Solar-Powered Bike Path That Gl by Anonymous Coward · · Score: 0

    It's a DUMB idea. As someone who rides in the night, your eyes get used to the dark, there's enough light from the moon, and my LED headlights are more than enough.

    But to car drivers you are a dark object in front of a dark background and therefore a potential road-kill at night. Hopefully, the bike rider is more visible to car drivers due to lighting from this glowing path.

  44. Re:Poland Builds a Solar-Powered Bike Path That Gl by Anonymous Coward · · Score: 0

    My friend asked me to come diagnose his lights because he kept getting electrocuted.

    Amazing. How many times was your friend killed? And how was he brought back to life? This is real news!

  45. Re: Poland Builds a Solar-Powered Bike Path That G by Opportunist · · Score: 1

    Dude, my country has a recorded history that predates yours, so please don't assume shit when you know nothing.

    But it's Polish jokes you want? Ok, here we go.

    Polish tourism campaign: Visit Poland! Your car already does.

    Why do Russian car thieves steal two cars in Germany? Because they know they still have to go through Poland.

    Why was Germany so happy when Ratzinger was elected Pope? Because it was the first time a German took a job from a Polish guy.

    What does the warranty for Polish Battleships say? Void if brought in contact with water.

    Who won the Miss Poland contest? An Ukrainian woman.

    Why do we know that Christ wasn't born in Poland? Because the story talks about three wise men and a virgin.

    What do you do when the Polish throw a Grenade at you? Pull the pin and throw it back.

    How was copper wire invented? The Pole and the town Jew found a penny at the same time.

    How do you put on Polish underwear? Yellow to the front, brown to the back.

    What's the long and hard thing a Polish bride gets at her wedding day? A last name.

    Oh, and by the way, don't let anyone tell you to polish up your English. I think your English is Polish enough.

    --
    We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
  46. Re: Poland Builds a Solar-Powered Bike Path That G by rpstrong · · Score: 1

    Why was Germany so happy when Ratzinger was elected Pope? Because it was the first time a German took a job from a Polish guy.

    And why did they elect a Polish pope in the first place?

    Because the Italians wouldn't give a 90 day warranty.